I suggest that you sport Camouflage Combat Gear to suit the terrain that you will be in & that you go 'commando' underneath to keep your cool & your body as fresh as possible on Black Friday ! Be daring ! Why not ?
Ask at your local / nearest Carphone Warehouse Store & the Sales Staff in there will be able to advise you on this to the best of their abiliti(y)ies ! Keep them in a Retail Job !